CN120718422B - High-moisture-absorption polyester composite material and preparation method thereof - Google Patents
High-moisture-absorption polyester composite material and preparation method thereofInfo
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- CN120718422B CN120718422B CN202511178117.3A CN202511178117A CN120718422B CN 120718422 B CN120718422 B CN 120718422B CN 202511178117 A CN202511178117 A CN 202511178117A CN 120718422 B CN120718422 B CN 120718422B
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Abstract
本发明涉及高分子材料技术领域，公开了一种高吸湿聚酯复合材料及其制备方法。本发明制备的聚酯复合材料是以PTT聚酯和吸湿改性聚酯为主要原料，并添加增韧剂、抗氧剂、紫外线吸收剂以及润滑剂制成，采用该聚酯复合材料制成的纤维丝在保持断裂强度和断裂伸长率的同时，还具有高吸湿性。因此，以该复合材料为原料制成面料具有优异的回潮率和吸湿性。This invention relates to the field of polymer materials technology, and discloses a highly absorbent polyester composite material and its preparation method. The polyester composite material prepared by this invention is made primarily from PTT polyester and moisture-modified polyester, with the addition of toughening agents, antioxidants, ultraviolet absorbers, and lubricants. Fibers made from this polyester composite material maintain both breaking strength and elongation at break while also exhibiting high moisture absorption. Therefore, fabrics made from this composite material possess excellent moisture regain and absorbency.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-moisture-absorption polyester composite material and a preparation method thereof.
Background
Polyesters (such as PET, PBT, etc.) are widely used in the fields of fibers, films, engineering plastics, etc. because of their excellent mechanical properties, chemical resistance and processability. However, the conventional polyester material has problems of (1) polyester molecular chain mainly composed of benzene ring, ester bond and methylene, lack of strong polar group, resulting in poor hygroscopicity (generally moisture regain < 0.4%), and (2) hydrophobicity resulting in poor moisture absorption and perspiration property and strong smoldering feeling in the textile field, and (3) polyester is well combined with nonpolar fillers (such as carbon fiber and glass fiber) but weak interfacial adhesion with hydrophilic substances (such as cellulose and protein fiber) in the composite material.
The traditional modification method for improving the hygroscopicity of polyester comprises (1) increasing the surface hydrophilicity by plasma, alkali treatment or coating, but with short effect, easy abrasion, improvement of the surface only, and no improvement of the overall hygroscopicity, (2) blending with hydrophilic polymers (such as polyvinyl alcohol and polyacrylic acid), but with poor compatibility, easy phase separation, and remarkable reduction of mechanical properties after moisture absorption, and (3) adding hydrophilic nano materials (such as SiO 2 and montmorillonite), but with difficult dispersion of the nano materials in a matrix, and limited moisture absorption improvement. Therefore, researchers are required to develop a polyester composite material with high hygroscopicity without sacrificing mechanical properties so as to meet the application of the material in the fields of sportswear, medical dressing or antistatic materials and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-moisture-absorption polyester composite material and a preparation method thereof.
The aim of the invention can be achieved by the following technical scheme:
The high-moisture-absorption polyester composite material comprises, by weight, 40-50 parts of PTT polyester, 35-55 parts of moisture-absorption modified polyester, 15-25 parts of toughening agent, 0.5-2 parts of antioxidant, 1.5-3.5 parts of ultraviolet absorber and 1-2 parts of lubricant;
Further, the toughening agent is one of a maleic anhydride grafted ethylene-propylene-diene copolymer and a glycidyl methacrylate grafted ethylene-butene copolymer;
Further, the antioxidant is one of antioxidant 1010, antioxidant DLTP or antioxidant 168;
further, the ultraviolet absorber is one of an ultraviolet absorber UV329 or an ultraviolet absorber UV-234;
Further, the lubricant is one of zinc stearate or polyethylene wax;
the moisture absorption modified polyester is prepared by the following steps:
Step A1, evenly mixing terephthalyl diisocyanate, sodium hydroxide and toluene, adding 2,2' -oxo-diethylamine dihydrochloride, heating to 70 ℃, stirring under the protection of nitrogen for reaction for 16-20h, and performing rotary evaporation and drying to obtain an amino-terminated ether derivative;
Further, in the step A1, the dosage ratio of the terephthalyl diisocyanate, the sodium hydroxide, the toluene and the 2,2' -oxo-diethylamine dihydrochloride is 0.01-0.02mol:2-5g:50mL:0.021-0.042mol;
Step A2, adding 2-chloro-5-hydroxypyridine, an amine-terminated ether-containing derivative and cesium carbonate into dimethyl sulfoxide, stirring for 24 hours at 105 ℃, adding saturated ammonium chloride solution, stirring for 10 minutes, extracting, washing, drying and purifying by column chromatography to obtain the amine-terminated hydroxypyridine-ether-containing derivative;
further, in the step A2, the dosage ratio of the 2-chloro-5-hydroxypyridine, the terminal amino ether derivative, cesium carbonate, dimethyl sulfoxide and saturated ammonium chloride solution is 0.02-0.04mol:0.01-0.02mol:6.5-13g:50mL:100mL;
Step A3, uniformly stirring the hydroxyl-terminated pyridine-ether-containing derivative in methanol at room temperature under the condition of nitrogen, adding A3-propyl-2-alkene acyloxy propane-1-sodium sulfonate methanol solution, heating to 35-45 ℃ for reaction for 3.5-4.5 hours, and performing rotary evaporation and drying to obtain a modifier;
further, in the step A3, the dosage ratio of the hydroxyl-terminated pyridine-containing ether derivative, methanol and 3-prop-2-enoyloxy propane-1-sodium sulfonate methanol solution is 0.01mol:50mL:50mL;
Further, the 3-propyl-2-alkene acyloxy propane-1-sodium sulfonate methanol solution in the step A3 is prepared by mixing and stirring 3-propyl-2-alkene acyloxy propane-1-sodium sulfonate and methanol according to the dosage ratio of 0.02-0.025mol to 50 mL;
And A4, adding terephthalic acid, 1, 3-propanediol and a modifier into a reaction kettle according to the molar ratio of 1:0.8:0.3-0.5, adding 45-55ppm of heat stabilizer triethyl phosphate and 150-250ppm of antimonous oxide, vacuumizing, filling nitrogen for replacement twice, esterifying under the conditions of nitrogen and 230-250 ℃, slowly opening a fine tuning valve when the water yield reaches 90% of a theoretical value, discharging to normal pressure, heating to 270 ℃, controlling the temperature in the kettle to 275 ℃ after the vacuumizing pre-polycondensation reaction is carried out for 50min, carrying out polycondensation reaction for 3h, discharging, cooling, and granulating to obtain the moisture absorption modified polyester.
The preparation method of the high-moisture-absorption polyester composite material comprises the following steps:
weighing raw materials according to parts by weight, adding PTT polyester, moisture absorption modified polyester, a toughening agent, an antioxidant, an ultraviolet absorber and a lubricant into a stirrer, uniformly stirring, transferring into a double-screw extruder, extruding, granulating and drying to obtain the high moisture absorption polyester composite material;
Further, the extrusion temperature in the twin-screw extruder is 260-270 ℃, and the screw rotating speed is 350-550rpm/min.
The invention has the beneficial effects that:
the polyester composite material is prepared by taking PTT polyester and moisture absorption modified polyester as main raw materials and adding a toughening agent, an antioxidant, an ultraviolet absorber and a lubricant, and the fiber yarn prepared by the polyester composite material has high moisture absorption while maintaining the breaking strength and the breaking elongation. Therefore, the fabric prepared from the composite material has excellent moisture regain and hygroscopicity.
The moisture absorption modified polyester introduced in the polyester composite material is prepared by taking terephthalic acid, 1, 3-propanediol and a modifier as main raw materials and adding a heat stabilizer and a catalyst; the hydroxyl-terminated group contained in the modifier can participate in esterification reaction, and then ether bond, sodium sulfonate structure and pyridine structure contained in the modifier are led into polyester molecular chain, the synergistic effect of the ether bond, the sodium sulfonate structure and the pyridine structure improves the hygroscopicity of the polyester composite material, because the ether bond can increase the flexibility and free volume of the molecular chain, water molecules can be conveniently diffused into the composite material, nitrogen atoms in the pyridine structure contain lone pair electrons, hydrogen bonds can be formed with the water molecules, hygroscopicity is improved, pyridine is alkalescent, weak protonation can be generated with acidic water molecules in the environment, and the water absorption of the composite material is promoted, sodium sulfonate is a strong hydrophilic group and is located on a side chain of the polyester molecular chain, the group is dissociated into-SO 3 - and Na + in water, the polarity is obviously enhanced, water molecules are attracted, and Na + is easy to combine with the water molecules to form hydrated ions, and the hygroscopicity is further improved. In addition, the introduction of ether bond or pyridine ring into the rigid polyester chain can disturb the regular arrangement of molecular chains and reduce crystallinity, while the flexibility of the ether bond and the rigid heterocyclic structure of the pyridine ring can increase the distance between the molecular chains to form more pores, thereby facilitating the diffusion of water molecules and further improving hygroscopicity.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1. Modifier is prepared by the following steps:
step A1, uniformly mixing 0.01mol of terephthalyl diisocyanate, 2g of sodium hydroxide and 50mL of toluene, adding 0.021mol of 2,2' -oxo-diethylamine dihydrochloride, heating to 70 ℃, stirring under the protection of nitrogen for reaction for 16 hours, and performing rotary evaporation and drying to obtain an amino-terminated ether derivative;
step A2, adding 0.02mol of 2-chloro-5-hydroxypyridine, 0.01mol of end amino ether-containing derivative and 6.5g of cesium carbonate into 50mL of dimethyl sulfoxide, stirring for 24h at 105 ℃, adding 100mL of saturated ammonium chloride solution, stirring for 10min, extracting, washing, drying, and purifying by column chromatography to obtain the end amino ether-containing derivative;
Step A3, stirring 0.01mol of hydroxyl-terminated pyridine-ether-containing derivative in 50mL of methanol at room temperature under the condition of nitrogen, adding 50mL of 3-propyl-2-alkene acyloxypropane-1-sodium sulfonate methanol solution, heating to 35 ℃ for reaction for 3.5 hours, performing rotary evaporation, and drying to obtain a modifier, wherein the 3-propyl-2-alkene acyloxypropane-1-sodium sulfonate methanol solution is prepared by mixing and stirring 3-propyl-2-alkene acyloxypropane-1-sodium sulfonate and methanol according to the dosage ratio of 0.02mol to 50 mL;
And A4, adding terephthalic acid, 1, 3-propanediol and a modifier into a reaction kettle according to the molar ratio of 1:0.8:0.3, adding 45ppm of heat stabilizer triethyl phosphate and 150ppm of antimonous oxide, vacuumizing, filling nitrogen for replacement twice, esterifying under the conditions of nitrogen and 230 ℃, slowly opening a fine tuning valve when the water yield reaches 90% of a theoretical value, discharging to normal pressure, heating to 270 ℃, vacuumizing for precondensation reaction for 50min, controlling the temperature in the kettle to 275 ℃, performing polycondensation reaction for 3h, discharging, cooling and granulating to obtain the moisture-absorbing modified polyester.
Example 2. Modifier is prepared by the following steps:
Step A1, uniformly mixing 0.015mol of terephthalyl diisocyanate, 3.5g of sodium hydroxide and 50mL of toluene, adding 0.036mol of 2,2' -oxo-diethylamine dihydrochloride, heating to 70 ℃, stirring and reacting for 18h under the protection of nitrogen, and performing rotary evaporation and drying to obtain an amino-terminated ether derivative;
step A2, adding 0.03mol of 2-chloro-5-hydroxypyridine, 0.015mol of end amino ether-containing derivative and 9.5g of cesium carbonate into 50mL of dimethyl sulfoxide, stirring for 24h at 105 ℃, adding 100mL of saturated ammonium chloride solution, stirring for 10min, extracting, washing, drying, and purifying by column chromatography to obtain the end amino ether-containing derivative;
Step A3, stirring 0.01mol of hydroxyl-terminated pyridine-ether-containing derivative in 50mL of methanol at room temperature under the condition of nitrogen, adding 50mL of 3-propyl-2-alkene acyloxypropane-1-sodium sulfonate methanol solution, heating to 40 ℃ for reaction for 4 hours, performing rotary evaporation, and drying to obtain a modifier, wherein the 3-propyl-2-alkene acyloxypropane-1-sodium sulfonate methanol solution is prepared by mixing and stirring 3-propyl-2-alkene acyloxypropane-1-sodium sulfonate and methanol according to the dosage ratio of 0.022mol to 50 mL;
and A4, adding terephthalic acid, 1, 3-propanediol and a modifier into a reaction kettle according to the molar ratio of 1:0.8:0.4, adding 50ppm of heat stabilizer triethyl phosphate and 200ppm of antimonous oxide, vacuumizing, filling nitrogen for replacement twice, esterifying under the conditions of nitrogen and 240 ℃, slowly opening a fine tuning valve when the water yield reaches 90% of a theoretical value, discharging to normal pressure, heating to 270 ℃, controlling the temperature in the kettle to 275 ℃ after vacuumizing pre-polycondensation reaction for 50min, performing polycondensation reaction for 3h, discharging, cooling, and granulating to obtain the moisture-absorbing modified polyester.
Example 3 modifier is prepared by the following steps:
Step A1, uniformly mixing 0.02mol of terephthalyl diisocyanate, 5g of sodium hydroxide and 50mL of toluene, adding 0.042mol of 2,2' -oxo-diethylamine dihydrochloride, heating to 70 ℃, stirring under the protection of nitrogen for reaction for 20 hours, and performing rotary evaporation and drying to obtain an amino-terminated ether derivative;
Step A2, adding 0.04mol of 2-chloro-5-hydroxypyridine, 0.02mol of end amino ether-containing derivative and 13g of cesium carbonate into 50mL of dimethyl sulfoxide, stirring for 24h at 105 ℃, adding 100mL of saturated ammonium chloride solution, stirring for 10min, extracting, washing, drying, and purifying by column chromatography to obtain the end amino ether-containing derivative;
step A3, stirring 0.01mol of hydroxyl-terminated pyridine-ether-containing derivative in 50mL of methanol at room temperature under the condition of nitrogen, adding 50mL of 3-prop-2-enoyl oxypropane-1-sodium sulfonate methanol solution, heating to 45 ℃ for reaction for 4.5 hours, performing rotary evaporation, and drying to obtain a modifier, wherein the 3-prop-2-enoyl oxypropane-1-sodium sulfonate methanol solution is prepared by mixing and stirring 3-prop-2-enoyl oxypropane-1-sodium sulfonate and methanol according to the dosage ratio of 0.025mol to 50 mL;
And A4, adding terephthalic acid, 1, 3-propanediol and a modifier into a reaction kettle according to the molar ratio of 1:0.8:0.5, adding 55ppm of heat stabilizer triethyl phosphate and 250ppm of antimonous oxide, vacuumizing, filling nitrogen for replacement twice, esterifying under the conditions of nitrogen and 250 ℃, slowly opening a fine tuning valve when the water yield reaches 90% of a theoretical value, discharging to normal pressure, heating to 270 ℃, vacuumizing for precondensation reaction for 50min, controlling the temperature in the kettle to 275 ℃, performing polycondensation reaction for 3h, discharging, cooling and granulating to obtain the moisture-absorbing modified polyester.
Example 4A method for preparing a highly hygroscopic polyester composite comprises the steps of:
40 parts of PTT polyester, 35 parts of the moisture absorption modified polyester prepared in example 1, 15 parts of maleic anhydride grafted ethylene-propylene-diene copolymer, 0.5 part of antioxidant DLTP, 1.5 parts of ultraviolet absorbent UV329, and 1-2 parts of zinc stearate;
the preparation method comprises the steps of weighing raw materials according to parts by weight, adding PTT polyester, the moisture absorption modified polyester prepared in example 1, maleic anhydride grafted ethylene-propylene-diene copolymer, an antioxidant DLTP, an ultraviolet absorber UV329 and zinc stearate into a stirrer, uniformly stirring, transferring into a double-screw extruder, extruding, granulating and drying to obtain the high moisture absorption polyester composite material, wherein the extrusion temperature in the double-screw extruder is 260 ℃, and the screw speed is 350rpm/min.
Example 5A method for preparing a highly hygroscopic polyester composite comprises the steps of:
45 parts of PTT polyester, 45 parts of the moisture absorption modified polyester prepared in example 2, 20 parts of maleic anhydride grafted ethylene-propylene-diene copolymer, 1 part of antioxidant 1010, 2.5 parts of ultraviolet absorber UV-234 and 1.5 parts of polyethylene wax;
The preparation method comprises the steps of weighing raw materials according to parts by weight, adding PTT polyester, the moisture absorption modified polyester prepared in example 2, maleic anhydride grafted ethylene-propylene-diene copolymer, antioxidant 1010, ultraviolet absorber UV-234 and polyethylene wax into a stirrer, stirring uniformly, transferring into a double-screw extruder, extruding, granulating and drying to obtain the high moisture absorption polyester composite material, wherein the extrusion temperature in the double-screw extruder is 265 ℃, and the screw speed is 450rpm/min.
Example 6A method for preparing a highly hygroscopic polyester composite comprises the steps of:
50 parts of PTT polyester, 55 parts of moisture absorption modified polyester prepared in example 3, 25 parts of glycidyl methacrylate grafted ethylene-butene copolymer, 168 parts of antioxidant, 3.5 parts of ultraviolet absorber UV-234 and 2 parts of polyethylene wax;
the preparation method comprises the steps of weighing raw materials according to parts by weight, adding PTT polyester, the moisture absorption modified polyester prepared in example 3, the glycidyl methacrylate grafted ethylene-butene copolymer, the antioxidant 168, the ultraviolet absorber UV-234 and polyethylene wax into a stirrer, uniformly stirring, transferring into a double-screw extruder, extruding, granulating and drying to obtain the high moisture absorption polyester composite material, wherein the extrusion temperature in the double-screw extruder is 270 ℃, and the screw speed is 550rpm/min.
Comparative example 1 this comparative example is a polyester composite material, differing from example 6 in that the moisture-absorbing modified polyester prepared in example 3 was replaced with a PTT polyester, and the remainder were the same.
Comparative example 2 this comparative example is a polyester composite material, differing from example 6 in that the moisture-absorbing modified polyester prepared in example 3 was replaced with polyester, the remainder being the same;
The polyester is prepared by adding terephthalic acid, 1, 3-propanediol and a hydroxyl-terminated pyridine-containing ether derivative into a reaction kettle according to the molar ratio of 1:0.8:0.5, adding 55ppm of heat stabilizer triethyl phosphate and 250ppm of antimonous oxide, vacuumizing, filling nitrogen for replacement twice, esterifying under the conditions of nitrogen and 250 ℃, slowly opening a fine tuning valve when the water yield reaches 90% of theoretical value, discharging to normal pressure, heating to 270 ℃, controlling the temperature in the kettle to 275 ℃ after vacuumizing pre-polycondensation reaction for 50min, performing polycondensation reaction for 3h, discharging, cooling, and granulating to obtain the polyester.
The polyester composite materials prepared in examples 4-6 and comparative examples 1-2 were prepared into polyester FDY yarns by an H-shaped spinneret plate according to the FDY process, the polyester FDY yarns were spun to prepare warp yarns with a linear density of 28tex and weft yarns with a linear density of 22tex respectively, and then woven to prepare fabrics, and the polyester FDY yarns and the fabrics were tested:
testing the tensile breaking performance, namely testing the polyester FDY yarn by referring to the standard of GB/T14344-2008 chemical fiber filament tensile performance test method;
The moisture regain performance test is to test the polyester FDY yarn by referring to the standard of GB/T6503-2017 chemical fiber moisture regain test method;
Cutting a fabric made of polyester FDY yarns into 3 small pieces, recording the initial mass (M 1), putting the small pieces into a beaker containing water, soaking the small pieces for 1h, taking out the small pieces, sucking the water on the surface of the fabric by using filter paper until the water drops fall off naturally, weighing the mass (M 2), calculating the water absorption rate, taking the average value of 3 results, and calculating the water absorption rate by using the following formula, wherein M= (M 2-M1）/M1, M is the water absorption rate, M1 is the dry weight of the fabric, and M 2 is the weight of the fabric after water absorption;
the test results are shown in table 1:
TABLE 1 Performance test results
As can be seen from Table 1, the fiber spun from the polyester composite material prepared by the invention has excellent moisture regain while maintaining good breaking strength and elongation at break, and the fabric prepared from the fiber has higher water absorption.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar alternatives may be made by those skilled in the art, without departing from the scope of the invention as defined by the principles of the invention.
Claims (10)
1. The high-moisture-absorption polyester composite material is characterized by comprising, by weight, 40-50 parts of PTT polyester, 35-55 parts of moisture-absorption modified polyester, 15-25 parts of toughening agent, 0.5-2 parts of antioxidant, 1.5-3.5 parts of ultraviolet absorber and 1-2 parts of lubricant;
The moisture absorption modified polyester is prepared by esterification and polycondensation of terephthalic acid, 1, 3-propanediol and a modifier according to a molar ratio of 1:0.8:0.3-0.5, wherein the modifier is prepared by reacting a hydroxyl-terminated pyridine-containing ether derivative with 3-propyl-2-alkene acyloxypropane-1-sodium sulfonate at 35-45 ℃ for 3.5-4.5 hours, the hydroxyl-terminated pyridine-containing ether derivative is prepared by reacting 2-chloro-5-hydroxypyridine with an amino-terminated ether derivative at 105 ℃ for 24 hours under stirring, and the amino-terminated ether derivative is prepared by reacting terephthalyl diisocyanate with 2,2' -oxo-diethylamine dihydrochloride at 70 ℃ for 16-20 hours under stirring.
2. The high moisture absorption polyester composite material according to claim 1, wherein the moisture absorption modified polyester is prepared by the steps of:
Step A1, evenly mixing terephthalyl diisocyanate, sodium hydroxide and toluene, adding 2,2' -oxo-diethylamine dihydrochloride, heating to 70 ℃, stirring under the protection of nitrogen for reaction for 16-20h, and performing rotary evaporation and drying to obtain an amino-terminated ether derivative;
Step A2, adding 2-chloro-5-hydroxypyridine, an amine-terminated ether-containing derivative and cesium carbonate into dimethyl sulfoxide, stirring for 24 hours at 105 ℃, adding saturated ammonium chloride solution, stirring for 10 minutes, extracting, washing, drying and purifying by column chromatography to obtain the amine-terminated hydroxypyridine-ether-containing derivative;
Step A3, uniformly stirring the hydroxyl-terminated pyridine-ether-containing derivative in methanol at room temperature under the condition of nitrogen, adding A3-propyl-2-alkene acyloxy propane-1-sodium sulfonate methanol solution, heating to 35-45 ℃ for reaction for 3.5-4.5 hours, and performing rotary evaporation and drying to obtain a modifier;
And A4, adding terephthalic acid, 1, 3-propanediol and a modifier into a reaction kettle according to the molar ratio of 1:0.8:0.3-0.5, adding 45-55ppm of heat stabilizer triethyl phosphate and 150-250ppm of antimonous oxide, vacuumizing, filling nitrogen for replacement twice, esterifying under the conditions of nitrogen and 230-250 ℃, slowly opening a fine tuning valve when the water yield reaches 90% of a theoretical value, discharging to normal pressure, heating to 270 ℃, controlling the temperature in the kettle to 275 ℃ after the vacuumizing pre-polycondensation reaction is carried out for 50min, carrying out polycondensation reaction for 3h, discharging, cooling, and granulating to obtain the moisture absorption modified polyester.
3. The polyester composite with high moisture absorption according to claim 2, wherein the dosage ratio of terephthal-isocyanate, sodium hydroxide, toluene and 2,2' -oxo-diethylamine dihydrochloride in the step A1 is 0.01-0.02mol:2-5g:50mL:0.021-0.042mol.
4. The polyester composite with high moisture absorption according to claim 2, wherein in the step A2, the dosage ratio of the 2-chloro-5-hydroxypyridine, the terminal amino group containing ether derivative, the cesium carbonate, the dimethyl sulfoxide and the saturated ammonium chloride solution is 0.02-0.04mol:0.01-0.02mol:6.5-13g:50mL:100mL.
5. The polyester composite of claim 2, wherein in step A3, the ratio of the amount of the ether-containing end hydroxypyridine-derivative, methanol, and 3-prop-2-enoxypropane-1-sulfonic acid sodium methoxide to the amount of the methanol solution is 0.01mol:50ml:50ml.
6. The polyester composite material with high moisture absorption according to claim 2, wherein the 3-prop-2-enoxypropane-1-sodium sulfonate methanol solution in the step A3 is prepared by mixing and stirring 3-prop-2-enoxypropane-1-sodium sulfonate and methanol according to the dosage ratio of 0.02-0.025mol:50 mL.
7. The high moisture absorption polyester composite according to claim 1, wherein the toughening agent is one of a maleic anhydride grafted ethylene-propylene-diene copolymer and a glycidyl methacrylate grafted ethylene-butene copolymer.
8. The high moisture absorption polyester composite material according to claim 1, wherein the antioxidant is one of antioxidant 1010, antioxidant DLTP or antioxidant 168.
9. The high moisture absorption polyester composite according to claim 1, wherein the ultraviolet absorber is one of ultraviolet absorber UV329 or ultraviolet absorber UV-234, and the lubricant is one of zinc stearate or polyethylene wax.
10. A method for preparing the high moisture absorption polyester composite material according to any one of claims 1 to 9, comprising the steps of:
the preparation method comprises the steps of weighing raw materials according to parts by weight, adding PTT polyester, moisture absorption modified polyester, a toughening agent, an antioxidant, an ultraviolet absorber and a lubricant into a stirrer, stirring uniformly, transferring into a double-screw extruder, extruding, granulating and drying to obtain the high moisture absorption polyester composite material, wherein the extrusion temperature in the double-screw extruder is 260-270 ℃, and the screw rotating speed is 350-550rpm/min.
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| CN1395588A (en) * | 2000-01-21 | 2003-02-05 | 三井化学株式会社 | Olefin block copolymer, its preparation method and use |
| CN108642592A (en) * | 2018-05-04 | 2018-10-12 | 浙江富胜达科技有限公司 | A kind of fibers with profiled section and its absorbing fast-drying fabric of making |
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| JPH0684426B2 (en) * | 1988-03-15 | 1994-10-26 | 帝人株式会社 | Method for producing copolyester |
| JP2002053743A (en) * | 2000-08-09 | 2002-02-19 | Toray Ind Inc | Hygroscopic polyester composition, synthetic fiber using this composition, and preparative process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1395588A (en) * | 2000-01-21 | 2003-02-05 | 三井化学株式会社 | Olefin block copolymer, its preparation method and use |
| CN108642592A (en) * | 2018-05-04 | 2018-10-12 | 浙江富胜达科技有限公司 | A kind of fibers with profiled section and its absorbing fast-drying fabric of making |
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